Assignee
MA IND INC
US·19 granted patents·1 pending application·273 citations·filing 1980–2017
Top patents by PatentIndex Score
20 records- 0180US6416012B1Apparatuses and methods for cutting and spooling paperMA IND INC·Filed 2000·Granted Jul 9, 2002·18 cites·17 claims
- 0275US5255859AMethod and apparatus for separating and classifying scrap plastic materialsMA IND INC·Filed 1990·Granted Oct 26, 1993·46 cites·2 claims
- 0373US4534225AMethod and apparatus for supporting cylindrical concrete samples for testingMA IND INC·Filed 1983·Granted Aug 13, 1985·32 cites·17 claims
- 0471US7487629B2Devices and methods for twisting yarnMA IND INC·Filed 2006·Granted Feb 10, 2009·2 cites·20 claims
- 0570US6315077B1Insert forming hole to receive manhole stepMA IND INC·Filed 1998·Granted Nov 13, 2001·26 cites·26 claims
- 0668US4397424ABattery reclaiming method and apparatusMA IND INC·Filed 1980·Granted Aug 9, 1983·24 cites·5 claims
- 0763USD504312SLift insertMA IND INC·Filed 2004·Granted Apr 26, 2005·12 cites·1 claims
- 0860US7290732B2Systems, apparatuses and methods for cutting and spooling paperMA IND INC·Filed 2004·Granted Nov 6, 2007·9 cites·11 claims
- 0960US4617112AThermal gravity classifying apparatus and methodMA IND INC·Filed 1984·Granted Oct 14, 1986·18 cites·13 claims
- 1051USD498131SManhole lift insert with frangible positionerMA IND INC·Filed 2003·Granted Nov 9, 2004·8 cites·1 claims
- 1150US4365780ARemovable insert for forming holes in concrete and the likeMA IND INC·Filed 1981·Granted Dec 28, 1982·12 cites·8 claims
- 1248US11154737B2Flame retardant porous plastic resinsMA IND INC·Filed 2015·Granted Oct 26, 2021·0 cites·8 claims
- 1346USD490907STwo-sided manhole stepMA IND INC·Filed 2003·Granted Jun 1, 2004·6 cites·1 claims
- 1446US2014251727A1Tree StepMA IND INC·Filed 2014·Application pending·0 cites
- 1545US6109587AManhole lift insert locatorMA IND INC·Filed 1997·Granted Aug 29, 2000·20 cites·7 claims
- 1641US5262020AHydrometallurgical method of producing metallic lead from materials containing oxides, particularly from the active material of accumulatorsMA IND INC·Filed 1992·Granted Nov 16, 1993·22 cites·13 claims
- 1739USD556917STwo sided manhole stepMA IND INC·Filed 2007·Granted Dec 4, 2007·4 cites·1 claims
- 1839US4957671AManufacture of plastic productsMA IND INC·Filed 1985·Granted Sep 18, 1990·9 cites·8 claims
- 1925US5277272AManhole ladderMA IND INC·Filed 1993·Granted Jan 11, 1994·5 cites·7 claims
- 2013USD839451SManhole stepMA IND INC·Filed 2017·Granted Jan 29, 2019·0 cites·1 claims
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